What size York rake would you recommend for a mid-50s HP tractor - a 6 or 7'?
Also, when raking a gravel drive, how do you recommend the rake be angled?
Inform us of the outside-to-outside width of your tractor tires. Without this measurement no one can give you a proper recommendation.
Wheel/tire spread can move the needle 24" on optimum rake width selection.
York Rakes are a brand of Landscape Rake, made by York Modern, originally in York, Pennsylvania. Is a York Rake what you have? Frames on York Rakes vary a bit from generic Landscape Rakes.
Landscape Rakes are most often used on a 45 degree angle, but angle is changed according to width of swathe desired and material worked, among other factors. Sometimes a
flat gravel drive is raked full width.
Crowned gravel drives are raked at less than half width.
Changing rake angles is a simple pin-lock change. The greater the angle, the more material moves along the face of the rake.
If you have a flat gravel drive consider a Land Plane Grading Scraper as well as a rake. Two blades and basin LPGS is much faster for repetitive gravel grading. LPGS "recovers" gravel.
Landscape Rakes are seldom used perpendicular to tractor, except when gathering debris, when rakes without gauge wheels are reversed to push debris.
Your next question should be: Do I need $300-$400 gauge wheels for my Landscape (or York) Rake?
I have both an ETA Landscape Rake with ETA gauge wheels and a Ratchet Rake bucket attachment. I suggest you research Landscape Rake
Vs. Ratchet Rake.
I use my Ratchet Rake at least eight hours for each hour i use my Landscape Rake. Ratchet Rakes does not require gauge wheels. Ratchet Rake is the more versatile tool. If raking driveway gravel is your primary task a Landcape (or York) Rake with gauge wheels may be the better tool. A Landscape Rake is a two trick pony.
If you have a flat gravel drive a Land Plane Grading Scraper may be superior to both a Landscape Rake and Ratchet Rake.
An LPGS is a one trick pony.
Implement weight per unit of width is your friend in all ground contact work.
VIDEOS:
land plane grading scraper - YouTube
eta landscape rake - YouTube